The Missouri Booms, 1805: The 'Artillery of the Rocky Mountains' Lewis and Clark Could Not Explain — updates · Anomaly LedgerAppend-only living-dossier updates for “The Missouri Booms, 1805: The 'Artillery of the Rocky Mountains' Lewis and Clark Could Not Explain”.https://theanomalyledger.com/en-usCase file opened: The Missouri Booms, 1805: The 'Artillery of the Rocky Mountains' Lewis and Clark Could Not Explainhttps://theanomalyledger.com/cases/missouri-booms-great-falls-1805/https://theanomalyledger.com/cases/missouri-booms-great-falls-1805/At the Great Falls of the Missouri in 1805, Lewis and Clark kept hearing booms like distant cannon under clear skies. They never found the cause.Tue, 03 Nov 2026 00:00:00 GMTPublished